WESTFIELD, Mass. — Barnes Air National Guard Base in western Massachusetts is holding its first air show in seven years this weekend.The Westfield International Airshow and the 104th Fighter Wing Open House scheduled for Saturday and Sunday are open to the public.Highlights of the show include the Air Force Thunderbirds precision flying team, the Army Black Daggers parachute team and several aerobatics squads.Visitors will also get a chance to see several vintage World War II-era aircrafts as well as modern aircrafts in the air.